Writing Feedback / The given graphs compare the percentage of five used sources of energy consumed in the USA - IELTS 1 [4]

The main sources of energy in the USA in 1980 and 1990

The given graphs compare the percentage of five used sources of energy consumed in the USA in 1980 and 1990. Overall, the consumption of oil dominating other sources in energy industry could be seen at the first glance. While, there was not much changes in the proportion of other categories.

In 1980, oil contributed 42% and was the best choice for sources of energy. The second and third highest figures were from natural gas and coal, with 26% and 22% respectively. After 10 years, the rate of oil remained the most reliable type of energy, yet decreased by 9%. Coal appeared to be the second highest percentage (27%) at the expense of oil. However, the proportion of natural gas was virtually the same, which decreased to 25%.

The source of energy produced from nuclear power was taken more consideration after one decade, which the proportion doubled to 10% in 1990. However, the percentage of used hydroelectric power remained the lowest figure accounting for 5% compare to other categories in two given years

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